Asri-unix.388 net.unix-wizards utzoo!decvax!ucbvax!menlo70!sri-unix!dpk@BMD70 Thu Dec 31 21:53:18 1981 Re: more on /etc/rc and /dev/console From: Doug Kingston Here at BRL we run a highly modified version of V6, but we still do not have process groups. Even so, the following information is applicable with suitable modificaton. We wanted a way for our arpanet and accounting programs to write on the console without gaining a controlling tty. This was seen as a general need for logging various kinds of information so we wrote a few lines of code to implement what we call the "console" device. Physically it is the same as some other device[s], but when you open that device it does not become your controlling tty. Essentially there is a conopen() which does a normal open and then resets the controlling tty if appropriate. This means that in /etc/rc or a program, this device can be opened with no side effects, just output. If anyone wants more info, send me a private letter. Cheers, Doug ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.